Word lists can of course serve various purposes: When regional varieties of a language are to be accommodated, a word list can be created of the words that are required for specific varieties of a language. They can also be incorporated into computer applications of an instrument. A word list can be a useful resource for interviewers. They cannot, however, address challenges faced when regional varieties differ in more radical and structural ways from one another. A word list can also serve similar functions as a glossary.